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-rw-r--r--arch/sandbox/cpu/os.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index b7c3bf5..6d55b5c 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -23,9 +23,12 @@
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
+#include <time.h>
+#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
+#include <linux/types.h>
#include <os.h>
@@ -94,3 +97,27 @@ void *os_malloc(size_t length)
return mmap(NULL, length, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
}
+
+void os_usleep(unsigned long usec)
+{
+ usleep(usec);
+}
+
+u64 os_get_nsec(void)
+{
+#if defined(CLOCK_MONOTONIC) && defined(_POSIX_MONOTONIC_CLOCK)
+ struct timespec tp;
+ if (EINVAL == clock_gettime(CLOCK_MONOTONIC, &tp)) {
+ struct timeval tv;
+
+ gettimeofday(&tv, NULL);
+ tp.tv_sec = tv.tv_sec;
+ tp.tv_nsec = tv.tv_usec * 1000;
+ }
+ return tp.tv_sec * 1000000000ULL + tp.tv_nsec;
+#else
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ return tv.tv_sec * 1000000000ULL + tv.tv_usec * 1000;
+#endif
+}